UNCLE GRANDPAS ROLLER COASTER IN ROBLOX - Thanks for watching Help me reach 1400000 subscribers! Click here to subscribe!brMarlin and I embark in a journey to ride Uncle Grandpas rollercoaster! Marlin ➽ Wanna do my captions?brRoblox Adventures Uncle Grandpa Roller Coaster Giant Grandpa Eats Me Alive! - Thanks for watching! ▻ I LOVE CATS T-Shirt Now Available!brToday We Ride UNCLE GRANDPAS ROLLERCOASTER IN ROBLOX. I Hope You Guys LIKE This Roblox Video. Help This Channel Grow To 200000 .